US 2024/0254993 A1Published application

Fan and electronic device

AssigneeHonor Device Co., Ltd.

InventorsTao YANG, Yong ZHAO, Man GAO, Guoliang HUO

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Abstract

This application provides a fan and an electronic device. The fan includes a body, and an air duct, an air outlet and a flow guiding inlet are formed in the body; the air duct includes an air inlet area and an air outlet area, and a flow guiding member is disposed in the air outlet area; the flow guiding member and the body form a first channel, a second channel, and a third channel. After a main airflow in the air inlet area enters the first channel and the third channel, a negative pressure area is formed at the flow guiding outlet, a differential pressure exists between air pressures in the negative pressure area and the second channel, and the differential pressure enables air to enter the flow guiding cavity from the flow guiding inlet to form an induced airflow, thereby increasing an air output.

Claims21

Dependent claims

A fan, comprising a body, wherein an air duct, an air outlet and a flow guiding inlet that is communicated with the outside are formed in the body;

and the air duct comprises an air inlet area and an air outlet area that are sequentially distributed and communicated in a length direction of the fan, the air outlet area is corresponding to the air outlet and is communicated with the air outlet, and a flow guiding member is disposed in the air outlet area;
the flow guiding member comprises a first guide plate, a second guide plate, and a sleeve, a first channel is formed between the first guide plate and an inner wall of the air duct, the first guide plate and the second guide plate are oppositely spaced apart to form a second channel, and a third channel is formed between the second guide plate and the inner wall of the air duct;
the first channel, the second channel, and the third channel are sequentially disposed in a thickness direction of the fan;
the sleeve is disposed in the first channel and/or the third channel, and the sleeve comprises a flow guiding cavity;
and one side that is of the second channel and that faces the air inlet area is isolated from the air inlet area, one side that is of the second channel and that faces away from the air inlet area forms a flow guiding outlet, and the flow guiding outlet and the air outlet face the same direction and are communicated;
and
in the length direction of the fan, the air inlet area, the first channel, and the air outlet are sequentially communicated, and the air inlet area, the third channel, and the air outlet are sequentially communicated;
and in the thickness direction of the fan, the flow guiding inlet, the flow guiding cavity, and the second channel are sequentially communicated.

5 more elements

An electronic device, comprising a housing and a heat sink, wherein the housing comprises an accommodating cavity, as well as an air vent and a thermovent that are communicated with the accommodating cavity, the heat sink is mounted in the accommodating cavity, the heat sink comprises a fan, an air inlet of the fan faces the air vent, and an air outlet of the fan faces the thermovent;

the fan comprises a body, wherein an air duct, an air outlet and a flow guiding inlet that is communicated with the outside are formed in the body;
and the air duct comprises an air inlet area and an air outlet area that are sequentially distributed and communicated in a length direction of the fan, the air outlet area is corresponding to the air outlet and is communicated with the air outlet, and a flow guiding member is disposed in the air outlet area;
the flow guiding member comprises a first guide plate, a second guide plate, and a sleeve, a first channel is formed between the first guide plate and an inner wall of the air duct, the first guide plate and the second guide plate are oppositely spaced apart to form a second channel, and a third channel is formed between the second guide plate and the inner wall of the air duct;
the first channel, the second channel, and the third channel are sequentially disposed in a thickness direction of the fan;
the sleeve is disposed in the first channel and/or the third channel, and the sleeve comprises a flow guiding cavity;
and one side that is of the second channel and that faces the air inlet area is isolated from the air inlet area, one side that is of the second channel and that faces away from the air inlet area forms a flow guiding outlet, and the flow guiding outlet and the air outlet face the same direction and are communicated;
and
in the length direction of the fan, the air inlet area, the first channel, and the air outlet are sequentially communicated, and the air inlet area, the third channel, and the air outlet are sequentially communicated;
and in the thickness direction of the fan, the flow guiding inlet, the flow guiding cavity, and the second channel are sequentially communicated.

6 more elements

Dependencies are inferred from the claim text.